After the extension has been installed, you will find the 3 new protocols in the configuration of publish profiles (Edit Publish Location).

This is a commercial extension, it is not free! The demo version allows users to test whether it will work with your webhost, however it is limited to uploading only 5 files per session. Also it has several nag screens.
The demo version can be downloaded via the Extension Manager (Menu->Tools->Extension Manager->Available).

The technology for this extension was licensed from another company so that is one of the reasons on why this is a paid extension.
Also by releasing it as a commercial extension I also hope to be able to continue the development of this and future extensions.